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Marrrta [24]
3 years ago
11

You invest in $5,000 in an account earning simple interests. The balance after 6 years is $6,200. What is the interests rate?

Mathematics
1 answer:
shtirl [24]3 years ago
4 0

Answer:

The interest rate is 4% per annum.

Step-by-step explanation:

Let the interest rate that I am getting is r% per annum.

So, my $5000 investment becomes $6200 after getting r% simple interest for 6 years.

So, from formula of simple interest we can write  

6200 = 5000(1 +\frac{rt}{100})

⇒ 1.24 = 1 + \frac{6r}{100}

⇒ \frac{6r}{100} = 0.24

⇒ r = 4%

Therefore, the interest rate is 4% per annum. (Answer)

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Answer:

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This equation holds as long as either \left(2\, \sin x + \sqrt{3}\right) or (2\, \cos x - 1) is zero. Let k be an integer. Accordingly:

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